Ibn Abbas (Allah be pleased with them) reported Allah's Messenger (ﷺ) as saying:He who buys foodgrain should not sell it until he has taken possession of it

A hadith like this has been narrated through the same chain of transmitters

Ibn Abbas (Allah be pleased with them) reported Allah's Messenger (ﷺ) as saying:He who buys food-rain should not sell it until he has taken possession of it. Ibn Abbas (Allah be pleased with them) said: I regard everything like food (so far as this principle is concerned)